Hi there,
I hope I can perhaps give you a few pointers to help while you're waiting for an official response from the doctor.
Regardless of anything the person with whom you had intercourse told you, there is no way without knowing the HIV-status of the guy to determine if he has it or not (this includes 'symptoms', etc).
In fact, Dr. Handsfield has posted some articles on this site about the risk of a single unprotected exposure. If you visit
http://www.medhelp.org/forums/STD/messages/512.html, you will see that he states "On average, it is believed the chance of HIV transmission during a single episode of unprotected vaginal sex is around one in 1000. But it varies widely depending on sex (more efficient male to female), circumcisison (higher risk for uncircumcised men), stage of HIV infection, presence of other STDs, and other factors." Hopefully that makes you feel a bit better about the risk.
Also, if you visit
http://www.medhelp.org/forums/STD/messages/708.html, you will learn that the time to positive HIV test is "sometimes positive as soon as 10 days, usually positive by 3 weeks, and virtually always positive by 6 weeks, despite official advice that it is best to wait 3 months to be sure. If your HIV test is negative 6 weeks after exposure (and especially after 12 weeks), you don't have HIV, period."
As for your last question, I'll let the doctor answer that, but to the best of my knowledge, PEP (Post-Exposure Prophylaxis) are the only "morning after pills" (actually, within 72 hours; the sooner the better) that would reduce your chances if you had a significant exposure (which, medically, I don't believe a single episode of unprotected vaginal sex with a male of unknown serostatus qualifies for - but again, I'm not a Doctor).
In any event, it seems like you have everything going in your favor. It'd be wise to test at the end of the window period and suggest that the person with whom you slept does the same.
Again, I'm not a Doctor or medical professional, but I hope my comment can put you at ease until Dr. Handsfield has a moment to reply to your message.
Take care!
- F.